#include<stdio.h>
int main(){
	int a = 0;
	char b = 0;
	double c = 0;
	int* pa = &a;
	char* pb = &b;
	double* pc = &c;
	printf("pa指针的步长为%d\n", sizeof(a));
	printf("pb指针的步长为%d\n", sizeof(b));
	printf("pc指针的步长为%d\n", sizeof(c));
	return 0;
}
